一種均質球體,由一系列球體構成,構成軸承中的滾動元件,即球(經過改良)。此部件主要用於減輕摩擦。它也可能用於其他用途,例如球式止回閥中的止回部件。不含:止回球;附孔球閥。
mil-s-980 mil spec single material response overall material document and classification, 0.3130 inches nominal rolling element diameter, steel comp e52100 overall material, metallic hardness rating rockwell c min 62.0 in. and max 65.0 in. special features